Motor rotor winding device

Abstract

The invention discloses a motor rotor winding device, and belongs to the technical field of rotor winding. A motor rotor winding device comprises a winding mechanism, the winding mechanism comprises a base, the base is provided with an operation concave part, two rotating joints are symmetrically arranged on the inner wall of the operation concave part, each rotating joint is provided with a rotating part and a fixing part, the rotating parts are provided with double flying fork arms used for winding, and the fixing parts are provided with fixing parts. And the fixed parts of the two rotary joints are jointly provided with a positioning block for limiting the rotor. When the rotating part rotates, hydraulic oil in the inner pipe can convert heat generated between the fixed part and the rotating part, so that the heat generated by rotation of the fixed part and the rotating part is reduced, and the problems that a large amount of heat generated during rotation cannot be discharged in time, the temperature of the joint of the rotating shaft and the double flying forks is increased, and resistance is increased are solved. High-speed rotation of the double flying fork arms is hindered, and the service life of the device is affected due to the fact that the rotating shaft is easily damaged by holding the rotating shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of rotor winding, in particular to a motor rotor winding device. Background Art

[0002] The motor rotor generally refers to the rotating part of the motor, which is often divided into the motor rotor and the generator rotor. The coil is one of the important components of the motor rotor. When producing the motor rotor, the staff needs to wind the copper wire around the motor rotor. With the rapid development of modern technology, in order to improve the production efficiency of the staff and reduce the production labor cost, more and more manufacturers have begun to use motor rotor winding devices to replace the traditional manual winding.

[0003] However, the current motor rotor winding device is already very mature, such as Figure 1 and Figure 2 The existing double flying fork winding machine shown in the figure has a double flying fork arm that rotates rapidly along the rotating shaft when winding, and a large amount of heat is generated during the rotation and cannot be discharged in time, resulting in an increase in temperature and increased resistance at the connection between the rotating shaft and the double flying fork arm, which hinders the high-speed rotation of the double flying fork arm. At the same time, it is easy to be damaged due to holding the rotating shaft, which affects the service life of the device. Summary of the invention

[0004] The present invention provides a motor rotor winding device, which can overcome certain defects of the prior art.

[0005] According to the present invention, a motor rotor winding device includes a winding mechanism, which includes a base. The base has an operating recess. Two rotating joints are symmetrically arranged on the inner wall of the operating recess. The two rotating joints each have a rotating part and a fixed part. A double flying fork arm for winding is arranged at the rotating part. The fixed parts of the two rotating joints are commonly provided with a positioning block for limiting the rotor.

[0006] Preferably, the rotating part includes a shell, the inner wall of the shell is provided with a first bearing and a second bearing, the inner rings of the first bearing and the second bearing are commonly fixedly mounted with a fixing part, and the first bearing and the second bearing are fixedly mounted with a first sealing gasket on both the top and bottom ends.

[0007] With the above structure, the rotation stability of the fixing part in the rotating part is improved.

[0008] Preferably, the fixing portion comprises a rotating shaft component, a pressure release mechanism is fixedly mounted on the top of the rotating shaft component, and a mounting plate is fixedly mounted on the top of the pressure release mechanism.

[0009] The above structure makes it easy to replace positioning blocks of different sizes.

[0010] Preferably, an inner tube is installed inside the rotating shaft component, the inner tube is coaxially arranged with the rotating shaft component, the top of the inner tube is threadedly connected to the bottom of the pressure release mechanism, a thread is arranged on the outside of the bottom of the inner tube, a second sealing gasket is sleeved and installed on the bottom of the inner tube, and the bottom end of the inner tube is threadedly installed on the rotating shaft component by a locking nut through the second sealing gasket.

[0011] Through the above structure, when the rotating part rotates, the hydraulic oil inside the inner tube will convert the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding the problem that a large amount of heat is generated during rotation and cannot be discharged in time, resulting in an increase in temperature and increased resistance at the connection between the rotating shaft and the double flying fork, hindering the high-speed rotation of the double flying fork, and easily being damaged due to holding the rotating shaft, affecting the service life of the device.

[0012] Preferably, a fitting gap is provided between the rotating shaft component and the inner tube, an oil outlet channel is opened on one side of the bottom end of the rotating shaft component, the oil outlet channel is connected to the fitting gap, and an oil inlet channel is opened on one side of the top end of the rotating shaft component, the oil inlet channel is connected to the fitting gap.

[0013] The above structure facilitates flow replacement when the hydraulic oil temperature is too high.

[0014] Preferably, the rotating part also includes a fixed cylinder connected to the shell, a first oil outlet end and a connecting pipe are fixedly connected to the outer side of the fixed cylinder, a second oil outlet end is fixedly installed on one end of the connecting pipe away from the rotating shaft component, a first recovery ring groove, a second recovery ring groove, a third recovery ring groove and an oil inlet chamber are arranged inside the fixed cylinder, the first recovery ring groove, the second recovery ring groove, the third recovery ring groove and the oil inlet chamber are arranged in sequence from top to bottom, a connecting pipe is fixedly connected to one side of the first recovery ring groove and the third recovery ring groove, and the connecting pipe is connected to the first recovery ring groove and the third recovery ring groove;

[0015] Preferably, a first oil outlet end is fixedly connected to a side of the second recovery ring groove away from the connecting pipe, the first oil outlet end is communicated with the second recovery ring groove, the second recovery ring groove is communicated with the matching gap, an oil inlet port is fixedly connected to one side of the oil inlet cavity, and the bottom end of the inner tube is located inside the oil inlet cavity;

[0016] Preferably, an oil seal, a retaining ring and a metal bushing are installed on the outer side of the bottom of the rotating shaft component, the retaining ring is located between the oil seal and the metal bushing, the oil seal, the retaining ring and the metal bushing are all located above the first recovery ring groove, the oil seal, the retaining ring and the metal bushing are all fixedly installed on the top inner wall of the fixed cylinder, and a third bearing and a third sealing gasket are fixedly installed on the bottom inner wall of the fixed cylinder, and the third bearing is located between the third recovery ring groove and the third sealing gasket.

[0017] Through the above structure, the hydraulic oil is input through the oil inlet port, and enters the interior of the oil inlet chamber and the interior of the inner tube in turn. At the same time, part of the hydraulic oil passes through the third bearing and further leaks into the third recovery ring groove through the tiny gap at the boundary between the rotating shaft component and the fixed cylinder. The leaked oil is collected in the connecting pipe, discharged from the second oil outlet end, and returned to the oil tank (not shown). In this way, the second recovery ring groove serves as a neutral non-pressure area between the hydraulic pressures of the first recovery ring groove and the third recovery ring groove, and plays a shielding role, that is, the same sealing effect as when there is an oil seal can be obtained. At the same time, since there is no oil seal, the oil seal is pressed by the oil pressure of the leaking oil, and the friction resistance will not increase. Therefore, the friction resistance is suppressed to a small value, which is suitable for high-speed rotation of the rotating shaft component and the fixed cylinder, and the service life of the device is improved.

[0018] Preferably, the pressure relief mechanism includes a connecting sleeve, which is fixedly mounted on the top of the rotating shaft component, a pressure relief chamber is provided inside the connecting sleeve, a piston is slidably mounted inside the pressure relief chamber, a spring is fixedly mounted on the top of the piston, the top of the spring is fixedly mounted on the top surface of the inner wall of the pressure relief chamber, the pressure relief chamber is connected to the inner tube, the oil inlet channel is connected to the pressure relief chamber, a limit ring is fixedly mounted on the outer side of the bottom of the connecting sleeve, and the limit ring is located below the first bearing.

[0019] Through the above structure, when the oil temperature in the inner tube is too high, the hydraulic oil is input through the oil inlet port, and enters the inside of the oil inlet chamber and the inside of the inner tube in sequence. When the hydraulic pressure is higher than the pressure of the spring on the pressure relief mechanism, the hydraulic oil enters the inside of the pressure relief chamber, and pushes the piston to move upward, and compresses the spring. The excess hydraulic oil enters the inside of the matching gap through the oil inlet channel, and then enters the inside of the second recovery ring groove through the oil outlet channel through the oil inlet channel, and flows out through the first oil outlet end to release the pressure, thereby avoiding the situation where the rotary joint is damaged due to overheating of the oil temperature caused by untimely oil change.

[0020] At the same time, the tension of the hydraulic oil in the inner tube is kept stable, which prevents the oil seal from being damaged by holding the rotating shaft parts tightly, thus shortening the service life of the rotary joint.

[0021] Preferably, an electric push rod for adjusting the distance between the two positioning blocks is fixedly provided between the fixing portion and the positioning block.

[0022] The above structure facilitates the positioning of rotors of different sizes, thereby improving the application range of the device.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention adopts the arrangement of the inner tube. When the rotating part rotates, the hydraulic oil inside the inner tube converts the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding the problem that a large amount of heat is generated during rotation and cannot be discharged in time, resulting in an increase in temperature and resistance at the connection between the rotating shaft and the double flying fork arm, hindering the high-speed rotation of the double flying fork arm, and easily being damaged due to holding the rotating shaft, thereby affecting the service life of the device.

[0025] 2. The present invention provides a pressure relief mechanism. When the oil temperature in the inner tube is too high, the hydraulic oil is input through the oil inlet port and enters the oil inlet chamber and the inner tube in sequence. When the hydraulic pressure is higher than the pressure of the spring on the pressure relief mechanism, the hydraulic oil enters the pressure relief chamber and pushes the piston to move upward, compressing the spring. Excess hydraulic oil enters the fitting gap through the oil inlet channel to release the pressure, thereby avoiding damage to the rotary joint due to overheating of the oil temperature caused by untimely oil change. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a motor rotor winding device;

[0027] Figure 2 It is a schematic diagram of the overall side cross-sectional structure of a motor rotor winding device;

[0028] Figure 3 It is a schematic diagram of the overall cross-sectional structure of a motor rotor winding device;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of a rotating shaft component of a motor rotor winding device;

[0030] Figure 5 It is a schematic diagram of the exploded structure of a motor rotor winding device;

[0031] Figure 6 This is a schematic diagram of the structure of an inner tube and a rotating shaft component of a motor rotor winding device;

[0032] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a pressure release mechanism of a motor rotor winding device.

[0033] 100, winding mechanism; 110, base; 120, rotary joint; 210, positioning block; 220, double fly fork arm; 1, housing; 2, rotating shaft component; 201, inner tube; 202, matching clearance; 203, oil outlet channel; 204, oil inlet channel; 3, pressure relief mechanism; 301, connecting sleeve; 302, piston; 303, spring; 304, pressure relief chamber; 305, limit ring; 4, mounting plate; 5, first bearing; 501 , second bearing; 6, first sealing gasket; 7, third bearing; 8, fixing cylinder; 801, first recovery ring groove; 802, second recovery ring groove; 803, third recovery ring groove; 804, oil inlet chamber; 9, oil seal; 10, oil inlet port; 11, first oil outlet end; 12, connecting pipe; 1201, second oil outlet end; 13, second sealing gasket; 14, retaining ring; 15, metal bushing; 16, locking nut; 17, third sealing gasket. DETAILED DESCRIPTION

[0034] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0035] Example 1

[0036] See also Figure 1-7 The present embodiment provides a motor rotor winding device including a winding mechanism 100, the winding mechanism 100 including a base 110, the base 110 having an operating recess, two rotating joints 120 symmetrically arranged on the inner wall of the operating recess, the two rotating joints 120 both having a rotating portion and a fixed portion, the rotating portion being provided with a double flying fork arm 220 for winding, the fixed portions of the two rotating joints 120 being jointly provided with a positioning block 210 for limiting the rotor.

[0037] In this embodiment, the rotating part includes a shell 1, and the inner wall of the shell 1 is provided with a first bearing 5 and a second bearing 501. A fixing part is fixedly installed on the inner rings of the first bearing 5 and the second bearing 501, and a first sealing gasket 6 is fixedly installed on both the top and bottom ends of the first bearing 5 and the second bearing 501.

[0038] With the above structure, the rotation stability of the fixing part in the rotating part is improved.

[0039] In this embodiment, the fixing portion includes a rotating shaft component 2 , a pressure release mechanism 3 is fixedly mounted on the top of the rotating shaft component 2 , and a mounting plate 4 is fixedly mounted on the top of the pressure release mechanism 3 .

[0040] The above structure makes it easy to replace positioning blocks 201 of different sizes.

[0041] In this embodiment, an inner tube 201 is installed inside the rotating shaft component 2, and the inner tube 201 is coaxially arranged with the rotating shaft component 2. The top of the inner tube 201 is threadedly connected to the bottom of the pressure release mechanism 3, and a thread is arranged on the outer side of the bottom of the inner tube 201. A second sealing gasket 13 is sleeved and installed on the bottom of the inner tube 201. The bottom end of the inner tube 201 is threadedly installed on the rotating shaft component 2 by a locking nut 16 through the second sealing gasket 13.

[0042] Through the above structure, when the rotating part rotates, the hydraulic oil inside the inner tube will convert the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding the problem that a large amount of heat is generated during rotation and cannot be discharged in time, resulting in an increase in temperature and increased resistance at the connection between the rotating shaft and the double flying fork, hindering the high-speed rotation of the double flying fork, and easily being damaged due to holding the rotating shaft, affecting the service life of the device.

[0043] In this embodiment, a fitting gap 202 is provided between the rotating shaft component 2 and the inner tube 201, an oil outlet channel 203 is opened on one side of the bottom end of the rotating shaft component 2, and the oil outlet channel 203 is connected to the fitting gap 202; an oil inlet channel 204 is opened on one side of the top end of the rotating shaft component 2, and the oil inlet channel 204 is connected to the fitting gap 202.

[0044] The above structure facilitates flow replacement when the hydraulic oil temperature is too high.

[0045] In this embodiment, the rotating part also includes a fixed cylinder 8 connected to the shell 1, and a first oil outlet end 11 and a connecting pipe 12 are fixedly connected to the outer side of the fixed cylinder 8, and a second oil outlet end 1201 is fixedly installed on the end of the connecting pipe 12 away from the rotating shaft component 2, and a first recovery ring groove 801, a second recovery ring groove 802, a third recovery ring groove 803 and an oil inlet cavity 804 are arranged inside the fixed cylinder 8, and the first recovery ring groove 801, the second recovery ring groove 802, the third recovery ring groove 803 and the oil inlet cavity 804 are arranged in sequence from top to bottom, and the first recovery ring groove 801 and the third recovery ring groove 803 are fixedly connected to the connecting pipe 12 on one side, and the connecting pipe 12 is connected to the first recovery ring groove 801 and the third recovery ring groove 803;

[0046] A first oil outlet 11 is fixedly connected to a side of the second recovery annular groove 802 away from the connecting pipe 12, the first oil outlet 11 is connected to the second recovery annular groove 802, the second recovery annular groove 802 is connected to the matching gap 202, an oil inlet port 10 is fixedly connected to one side of the oil inlet cavity 804, and the bottom end of the inner tube 201 is located inside the oil inlet cavity 804;

[0047] An oil seal 9, a retaining ring 14 and a metal bushing 15 are installed on the outer side of the bottom of the rotating shaft component 2. The retaining ring 14 is located between the oil seal 9 and the metal bushing 15. The oil seal 9, the retaining ring 14 and the metal bushing 15 are all located above the first recovery ring groove 801. The oil seal 9, the retaining ring 14 and the metal bushing 15 are all fixedly installed on the top inner wall of the fixed cylinder 8. The third bearing 7 and the third sealing gasket 17 are fixedly installed on the bottom inner wall of the fixed cylinder 8. The third bearing 7 is located between the third recovery ring groove 803 and the third sealing gasket 17.

[0048] Through the above structure, the hydraulic oil is input through the oil inlet port 10, and enters the interior of the oil inlet chamber 804 and the interior of the inner tube 201 in turn. At the same time, part of the hydraulic oil passes through the third bearing 7, and further leaks into the third recovery ring groove 803 through the tiny gap at the boundary between the rotating shaft component 2 and the fixed cylinder 8. The leaked oil is collected in the connecting pipe 12, discharged from the second oil outlet end 1201, and returned to the oil tank (not shown). In this way, the second recovery ring groove 802 serves as a neutral non-pressure zone between the hydraulic pressure of the first recovery ring groove 801 and the third recovery ring groove 803, and plays a shielding role, that is, the same sealing effect as when the oil seal 9 is present can be obtained. At the same time, since there is no oil seal 9, the oil seal 9 is pressed by the oil pressure of the leaking oil, and the friction resistance will not increase. Therefore, the friction resistance is suppressed to a small value, which is suitable for high-speed rotation of the rotating shaft component 2 and the fixed cylinder 8, thereby improving the service life of the device.

[0049] In this embodiment, the pressure release mechanism 3 includes a connecting sleeve 301, which is fixedly installed on the top of the rotating shaft component 2. A pressure release chamber 304 is arranged inside the connecting sleeve 301. A piston 302 is slidably installed inside the pressure release chamber 304. A spring 303 is fixedly installed on the top of the piston 302. The top of the spring 303 is fixedly installed on the top surface of the inner wall of the pressure release chamber 304. The pressure release chamber 304 is connected to the inner tube 201, and the oil inlet channel 204 is connected to the pressure release chamber 304. A limit ring 305 is fixedly installed on the outer side of the bottom of the connecting sleeve 301, and the limit ring 305 is located below the first bearing 5.

[0050] Through the above structure, when the oil temperature in the inner tube is too high, the hydraulic oil is input through the oil inlet port 10, and enters the inside of the oil inlet chamber 804 and the inside of the inner tube 201 in sequence. When the hydraulic pressure is higher than the pressure of the spring 303 on the pressure relief mechanism 3, the hydraulic oil enters the inside of the pressure relief chamber 304, and pushes the piston 302 to move upward, and compresses the spring 303. The excess hydraulic oil enters the inside of the matching gap 202 through the oil inlet channel 204, and then enters the inside of the second recovery ring groove 802 through the oil outlet channel 203 through the oil inlet channel 204, and flows out through the first oil outlet end 11 to release the pressure, thereby avoiding the situation where the rotary joint is damaged due to overheating of the oil temperature caused by untimely oil change;

[0051] At the same time, the tension of the hydraulic oil in the inner tube 201 is kept stable, so as to avoid the oil seal 9 being easily damaged by holding the rotating shaft component 2, thereby affecting the service life of the rotary joint.

[0052] In this embodiment, an electric push rod for adjusting the distance between the two positioning blocks 210 is fixedly provided between the fixing portion and the positioning block 210 .

[0053] The above structure facilitates the positioning of rotors of different sizes, thereby improving the application range of the device.

[0054] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0055] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of this template.

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A motor rotor winding device, characterized in that: The invention comprises a winding mechanism (100), wherein the winding mechanism (100) comprises a base (110), wherein the base (110) has an operating recess, wherein two rotating joints (120) are symmetrically arranged on the inner wall of the operating recess, wherein the two rotating joints (120) each have a rotating portion and a fixed portion, wherein a double flying fork arm (220) for winding is arranged on the rotating portion, and wherein the fixed portions of the two rotating joints (120) are jointly provided with a positioning block (210) for limiting a rotor.

2. A motor rotor winding device according to claim 1, characterized in that: The rotating part comprises a housing (1), the inner wall of the housing (1) is provided with a first bearing (5) and a second bearing (501), the inner rings of the first bearing (5) and the second bearing (501) are jointly fixedly mounted with a fixing part, and the top and bottom ends of the first bearing (5) and the second bearing (501) are both fixedly mounted with a first sealing gasket (6).

3. A motor rotor winding device according to claim 1, characterized in that: The fixing part comprises a rotating shaft component (2), a pressure release mechanism (3) is fixedly mounted on the top of the rotating shaft component (2), and a mounting plate (4) is fixedly mounted on the top of the pressure release mechanism (3).

4. A motor rotor winding device according to claim 3, characterized in that: An inner tube (201) is installed inside the rotating shaft component (2), the inner tube (201) and the rotating shaft component (2) are coaxially arranged, the top of the inner tube (201) is threadedly connected to the bottom of the pressure release mechanism (3), the outer side of the bottom of the inner tube (201) is provided with a thread, a second sealing gasket (13) is sleeved and installed on the bottom of the inner tube (201), and the bottom end of the inner tube (201) is threadedly installed on the rotating shaft component (2) through the second sealing gasket (13) and a locking nut (16).

5. A motor rotor winding device according to claim 4, characterized in that: A fitting gap (202) is provided between the rotating shaft component (2) and the inner tube (201); an oil outlet channel (203) is provided on one side of the bottom end of the rotating shaft component (2); the oil outlet channel (203) is connected to the fitting gap (202); an oil inlet channel (204) is provided on one side of the top end of the rotating shaft component (2); the oil inlet channel (204) is connected to the fitting gap (202).

6. A motor rotor winding device according to claim 1, characterized in that: The rotating part also includes a fixed cylinder (8) connected to the housing (1); a first oil outlet end (11) and a connecting pipe (12) are fixedly connected to the outer side of the fixed cylinder (8); a second oil outlet end (1201) is fixedly installed on one end of the connecting pipe (12) away from the rotating shaft component (2); a first recovery ring groove (801), a second recovery ring groove (802), a third recovery ring groove (803) and an oil inlet chamber (804) are arranged inside the fixed cylinder (8); the first recovery ring groove (801), the second recovery ring groove (802), the third recovery ring groove (803) and the oil inlet chamber (804) are arranged in sequence from top to bottom; a connecting pipe (12) is fixedly connected to one side of the first recovery ring groove (801) and the third recovery ring groove (803); and the connecting pipe (12) is connected to the first recovery ring groove (801) and the third recovery ring groove (803).

7. A motor rotor winding device according to claim 6, characterized in that: A first oil outlet end (11) is fixedly connected to a side of the second recovery annular groove (802) away from the connecting pipe (12); the first oil outlet end (11) is communicated with the second recovery annular groove (802); the second recovery annular groove (802) is communicated with the matching gap (202); an oil inlet port (10) is fixedly connected to one side of the oil inlet cavity (804); and the bottom end of the inner tube (201) is located inside the oil inlet cavity (804).

8. A motor rotor winding device according to claim 1, characterized in that: An oil seal (9), a retaining ring (14) and a metal bushing (15) are installed on the outer side of the bottom of the rotating shaft component (2); the retaining ring (14) is located between the oil seal (9) and the metal bushing (15); the oil seal (9), the retaining ring (14) and the metal bushing (15) are all located above the first recovery ring groove (801); the oil seal (9), the retaining ring (14) and the metal bushing (15) are all fixedly installed on the top inner wall of the fixed cylinder (8); a third bearing (7) and a third sealing gasket (17) are fixedly installed on the bottom inner wall of the fixed cylinder (8); the third bearing (7) is located between the third recovery ring groove (803) and the third sealing gasket (17).

9. A motor rotor winding device according to claim 3, characterized in that: The pressure relief mechanism (3) comprises a connecting sleeve (301), the connecting sleeve (301) is fixedly mounted on the top of the rotating shaft component (2), a pressure relief chamber (304) is arranged inside the connecting sleeve (301), a piston (302) is slidably mounted inside the pressure relief chamber (304), a spring (303) is fixedly mounted on the top of the piston (302), the top of the spring (303) is fixedly mounted on the top surface of the inner wall of the pressure relief chamber (304), the pressure relief chamber (304) is connected to the inner tube (201), the oil inlet channel (204) is connected to the pressure relief chamber (304), and a limit ring (305) is fixedly mounted on the outer side of the bottom of the connecting sleeve (301), and the limit ring (305) is located below the first bearing (5).

10. The motor rotor winding device according to claim 1, characterized in that: An electric push rod for adjusting the distance between the two positioning blocks (210) is fixedly provided between the fixing portion and the positioning block (210).

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